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6.4
Rebuild to scarifier
The BMC-335 can be rebuilt into a scarifier by changing the drive belt and both pulleys. Part numbers for this
modification can be found in the service manual.
Remove the belt guard (1) and lower the tension on the belt (3) by loosening the eyebolt (2) then
remove the drive belt.
Loosen both taper lock bushes (4) en remove the taper locks and pulleys (5)
Make sure the distance bush (6) stays on the motor axle and both keys are still on the axles.
Slide the pulley (8) over the motor axle and mount the pulley with mounting bush (9) and the hexagon
socket countersunk head screw (10). Apply threadlocker (Loctite 243) on the thread before mounting.
Slide the pulley (11) over the drum axle and turn on the axle nut (12) make sure that the right tools
will be used for this so the nut will not be damaged.
Mount the new belt (13) and tension the belt by turning the eyebolt (2) up. The tension of the belt
must be between 70 and 75Hz.
Assemble the belt guard back on to the machine.
Make sure that both rubber seals (14) and the metal strips on both sides of the machine are
removed before start working with the scarifier.
Work in opposite direction to build the machine back to sawing machine BMC-335.